anon. OSLO WAVECELL snowboard helmet. Size: XL (61-63cm) Round fit, so it fits Japanese head shapes. Color: Matte Black I bought it, but the size didn't fit, so it's an unused item, only tried on. Recommended for those who fit the size or wear it over goggles. If you have any questions, please comment. WaveCel Ski & Snowboard Helmet. Lightweight and compact look and feel with WaveCel impact absorption technology. Designed to fit a rounded head shape for a comfortable fit. The Anon Oslo WaveCel helmet features an injection-molded construction with 3D cell protection. It features a lightweight shell, EPS and WaveCel liner, and a thin, flowing form. WaveCel technology disperses impact and reduces rotational impact forces directly on the head. The BOA 360° fit system allows for quick on-the-spot adjustment with the turn of a dial. The Fidlock magnetic helmet strap buckle can be attached and detached with one hand, even with gloves on. Two vents keep goggles clear and comfortable throughout the day. The fluffy fleece liner and ear pads provide excellent heat retention and sweat absorption for a comfortable fit.